Fiber-containing composites are described that contain woven or non-woven fibers, and a cured binder formed from a binder composition that includes (1) a reducing sugar and (2) a crosslinking agent that includes a first carbon moiety selected from an aldehyde, a ketone, a nitrile, and a nitro group, wherein an α-carbon atom having at least one acidic hydrogen is directly bonded to the first carbon moiety. Exemplary reducing sugars include dextrose and exemplary crosslinking agents include glyoxal. Exemplary fiber-containing composites may include fiberglass insulation.

Organic solid three-dimensional polymeric foams, a process for preparing the same, and use thereof, the foams includes a solid continuous phase and pores, wherein the foams have a pore size ranging from 50 nm to 200 μm and a volumetric fraction of the solid continuous phase is from 0.1 to 60%, with respect to the total volume of the foams, and a polydispersity index from 1 to 30%, the foams being ordered over a volume of at least 100 pores.

A method of preparing a hydrogel product including crosslinked glycosaminoglycan molecules, said method including: i) providing a glycosaminoglycan crosslinked by amide bonds, wherein the crosslinked glycosaminoglycans include residual amine groups; and ii) acylating residual amine groups of the crosslinked glycosaminoglycans provided in i) to form acylated crosslinked glycosaminoglycans.

A liquid material including a polysaccharide is manufactured by creating a mixture of polysaccharides and an aqueous solvent or an aqueous cosolvent with organic solvents at a temperature at which gelation does not occur. The mixture is also irradiated at this lower temperature, such as with ultrasound waves in combination with stirring and/or bubbling of inert gases. to apply ultrasound to a mixture of. Compared with conventional reactions with low concentration solutions, the product yield and advantageous mechanical properties are significantly increased. Depolymerization (decomposition, disassembly) of polysaccharide in the liquid material does not occur to any substantial degree, and the molecular structure of the polysaccharide is maintained. Further, the liquid material does not gel even when the temperature is raised, and thus, its fluidity is maintained, despite polysaccharides being maintained at a high concentration. The liquid material is applicable to myriad industries, including pharmaceuticals and health foods.

A method for preparing an improved gum arabic comprising the steps of providing a gum arabic from Acacia seyal selecting gum arabic having a tannin content >700 ppm (w/w).

The present invention relates to a thermosetting binder composition containing water and a water-soluble oligomeric ester of at least one saccharide chosen from reducing sugars, non-reducing sugars and hydrogenated sugars, the hydrogenated sugars being chosen from the group consisting of erythritol, arabitol, xylitol, sorbitol, mannitol, iditol, maltitol, isomaltitol, lactitol, cellobitol, palatinitol, maltotritol and hydrogenation products of hydrolyzates of starch or of lignocellulose materials, and of at least one polycarboxylic acid, the binder composition having a dry matter content of between 50% and 80% by weight, the water-soluble oligomeric ester representing at least 80% by weight, preferably at least 90% by weight, of the cry matter content of the thermosetting binder composition, and the thermosetting binder composition containing less than 10% by weight, preferably less than 5% by weight, with respect to its dry matter content, of free sorbitol.

It also relates to the use of such a binder composition for the manufacture of a product based on mineral or organic fibers which are bonded by an insoluble organic binder.

The present invention relates to a biocompatible nanoparticle and a use thereof and, more specifically, to a biocompatible nanoparticle formed by irradiation an electron beam to an aqueous solution comprising at least one substance selected from the group consisting of a polysaccharide, a derivative thereof and a polyethylene glycol, thereby inducing inter-molecular cross-linking or intra-molecular cross-linking, and to a use of the biocompatible nanoparticle in a drug carrier, a contrast agent, a diagnostic agent or an intestinal adhesion prevention agent or for disease prevention and treatment.

The present invention is of compositions and methods including modular material controllers that combine amplification with logic, translation of input signals, and response tuning to directly and precisely program dramatic material size changes.

A stereolithography elastic film with adjustable peeling force applied to a stereolithography 3D printing apparatus, and the stereolithography elastic film includes at least one of a first colloid and a second colloid. The first colloid includes a non-polyelectrolyte and water, the water occupies the largest percentage in the first colloid. The second colloid includes a polyelectrolyte, a coagulant and water, the water occupies the largest percentage in the second colloid. The peeling force of the stereolithography elastic film may be adjusted by adjusting the percentage of at least one of the non-polyelectrolyte, the polyelectrolyte, the coagulant, and the water.

Embodiments of the present technology may include piping insulation products. The piping insulation product may include glass fibers and a binder. The binder may include cured products from a binder composition that includes a carbohydrate, a nitrogen-containing compound, and a catalyst that catalyzes the reaction between the carbohydrate and the nitrogen-containing compound. The catalyst may be water soluble before curing but water insoluble after curing. The nitrogen-containing compound may include an amino-amide, an amine salt of an organic acid, an ammonium salt of a carboxylic acid, or a reaction product of a urea compound and an aldehyde-containing compound. The catalyst may include a polymer including a sulfate, sulfonate, phosphate, or phosphonate moiety. The catalyst may be a crosslinker.